Apartment mailboxes give every unit its own locked door in one central spot. This page groups Salsbury Industries cluster box units (CBUs), Regency decorative CBUs, outdoor parcel lockers and a free-standing 4C horizontal mailbox for apartment complexes, condos and planned communities. For several homes on a driveway instead, see multi-unit mailboxes.
How to choose an apartment mailbox
Outdoor, on a pedestal: a standard CBU has 4 to 16 tenant doors plus parcel lockers, built to USPS "F" specifications by a USPS-licensed manufacturer. The 16-door Type III serves the most units.
A dressier entrance: Regency decorative CBUs add a die-cast aluminum top and pedestal cover.
More packages: an outdoor parcel locker adds 2 or 4 large compartments next to the CBUs.
Indoors or without a wall: the free-standing 4C mailbox has 9 tenant doors and 2 parcel lockers in its own enclosure, with private access.
Apartment mailbox questions
Who delivers to a CBU?
On USPS-access units the carrier opens every door at once from the front, and each resident opens their own door with their own keys. Talk to your local postmaster before you order.
How many keys come with each door?
Each tenant door has a 5-pin cylinder cam lock with a dust and rain shield and 3 keys.
